Cosmology is the scientific study of the structure and origin of the universe as a whole.

Submissions may be geared toward any educational level, from barely reading to professional researchers in the field. Consider submitting sites aimed at high school level or less also to Kids and Teens:School Time:Science:Astronomy and Space.

This category is for modern cosmology only. Please submit historical cosmology (about what was considered to be the entire universe at the time being treated) to Science:Astronomy:History:Worldviews.

Sites that deal with the "electromagnetic echo" of the big bang phase, the cosmic background radiation. Also includes observational missions specifically directed at observing the cosmic background radiation and its properties.

Sites dealing with explanations for the observed acceleration of our universe's expansion, which can be described either by what is called the cosmological constant or by assuming that empty space is filled with an energy form known as Dark Energy.

By observing galactic motions and from cosmology we know that there is a mass in the Universe that we cannot observe so far. It is called dark matter, as opposed to bright stars. It could be some kind of elementary particles.

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Title: Name of Site or Organization

Description: This describes the website and should note distinguishing features found on the site without the use of hype, personal pronouns, or repetitive terms.